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Cheesy Zucchini Casserole – Keto Recipe

You’re going to love this easy zucchini casserole! Deliciously cheesy, low in carbs and keto friendly, this zucchini bake makes a wonderful summer side dish that even the kids will love. A great way to use up that bounty of summer squash.

You have to laugh, because this zucchini casserole recipe was born of absolute necessity. The necessity of having too much zucchini and not enough ideas of what to do with it! My fellow gardeners, does this happen to you too? Right around this time every year, I start drowning in the long green summer squash. Every year, I have one monster plant that produces and produces and produces. And beside it is a smaller plant that produces and produces and produces. Within the past 2 days, I have harvest 7 large zucchini and I am passing them out to strangers on the street. I am not kidding. Sometimes I leave a box of them on the street corner and by late afternoon, they are all gone.

Things grow big here in Oregon. It’s quite remarkable, really – coming from the east, where things grow rather grudgingly, it blows my mind to watch my garden explode here every year. And we have these gorgeous raised beds in a prime full sun position. The zucchini plants love it and they get so large, I get a little worried they are going to devour my house. I always tell my husband we should plant only one but we end up planting a few zucchini starts in the spring, just in case. And then my sweet, soft-hearted husband can’t bear to pull up a plant that’s doing well. So every year, like clockwork, we drown in zucchini.

Which means I need to up my low carb zucchini recipes game, friends. I have so much to use and not enough ideas to use it all. It was time to create a delicious zucchini side dish that everyone would eat. Because my kiddos are not huge zucchini lovers, I needed a dish that would make everyone happy. This easy and cheesy zucchini casserole is just that dish. The flavor and texture are wonderful and it uses up 2 medium zucchini. Which isn’t nearly enough, but it’s a start!

How To Make Zucchini Casserole

Cut the zucchini in half lengthwise, then each half again lengthwise. Chop the quartered zucchini into 1/2 inch slices.

Lightly boil the zucchini before draining. This helps it release excess moisture so your casserole isn’t soupy. It also helps pre-cook it a bit so the casserole is tender.

Drain the zucchini well. It still requires this step and I let mine drain in a colander in the sink for about 15 minutes.

Don’t squeeze the zucchini out. It won’t need it after boiling and draining. You want the pieces of zucchini to hold their shape.

Layer the zucchini in a greased baking pan and pour the eggs, cream, and cheese mixture over top. It will work its way down into the bottom of the pan and bind the casserole together.

Sprinkle the top with more cheese and crushed pork rinds for a delicious cheesy crust. Bake at 350F until bubbly and browned.

I honestly can’t believe how good this is. When this zucchini casserole was baking, my mouth was watering from the delicious smells emanating from my kitchen. It was hard to wait until the rest of the family was home to dig in. To be honest, I didn’t. I snuck a few bites as I was getting photos. It was melt in your mouth delicious!

This recipe can easily be doubled for a crowd. Just use a 9×13 pan and enjoy!

More Low Carb Zucchini Recipes!

You're going to love this easy zucchini casserole! Deliciously cheesy, low in carbs and keto friendly, this zucchini bake makes a wonderful summer side dish that even the kids will love. A great way to use up that bounty of summer squash.

Course:
Side Dish

Cuisine:
American

Keyword:
baked zucchini, zucchini casserole

Servings: 6servings

Calories: 195kcal

Ingredients

2mediumzucchini, quartered and chopped(about 4 cups)

2tbspbuttercut into small pieces

3largeeggs

1/4cupheavy cream

1/4cupchopped onion

1/2tspsalt

1/2tsppepper

6ouncesshredded cheddar, divided(about 1 1/2 cups)

1/4cupgrated Parmesan cheese

1/4cup finely crushed pork rindsOptional

Instructions

Bring a large pot of lightly salted water to a boil. Add the zucchini and cook until just tender, about 4 minutes. Drain well in a colander.

Preheat the oven to 350F. Grease a 9-inch round or 8-inch square ceramic baking dish. Spread the zucchini in the pan and dot with pieces of butter.

In a large bowl, whisk together the eggs and cream. Stir in the onions, salt, and pepper, and half of the cheddar cheese. Pour over the zucchini.

Sprinkle the top with the remaining cheddar, the parmesan, and the pork rinds. Bake 35 minutes, until bubbly and the edges are nicely browned. Sprinkle with chopped basil, if desired.

Nutritional Disclaimer

Please note that I am not a medical or nutritional professional. I am simply recounting and sharing my own experiences on this blog. Nothing I express here should be taken as medical advice and you should consult with your doctor before starting any diet or exercise program.
I provide nutritional information for my recipes simply as a courtesy to my readers. It is calculated using MacGourmet software and I remove erythritol from the final carb count and net carb count, as it does not affect my own blood glucose levels. I do my best to be as accurate as possible but you should independently calculate nutritional information on your own before relying on them.
I expressly disclaim any and all liability of any kind with respect to any act or omission wholly or in part in reliance on anything contained in this website.

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Comments

This looks so great! I can taste it already 🙂 I love zucchini almost as much as cauliflower!

I’m in Alaska, and we have the same type of explosive growth, here. The soil is rich, and the abundant sun makes for massive fruits and veggies that grow quickly. I mean MASSIVE. I love growing in my garden and greenhouse in the summer, and I keep hydroponic systems inside all year-round, as well.

We don’t eat pork products, could you get a little crunchy topping by using almond flour and butter crumbled together with maybe a little Parm and sprinkled on top?? Sounds fabulous! I’m trying it tonight for supper!

Hi Denise. We don’t eat pork products either, so almonds are great, but I make a batch of chicken cracklings or crispy chicken skins and keep them on hand for keto recipes that call for pork rinds. They are so yummy and easy to make. There are many recipes out there, so just search for “chicken cracklings” or “crispy chicken skins recipe” and I am sure you will find one you like.

Hi Carolyn,
I live in Germany, we have the same “Zucchini problem” 🙂
Last weekend I had one real big Zucchini. I cut it in 12 even rings, scraped the seeds out with a spoon and filled them with oriental style ground meat and shredded feta cheese. So delicious.
You can fill anything you want in the rings, I tried chicken thigh meat as well as monkfish that was wrapped “saltimbocca style” with sage leafes and bacon strips. The rings on a baking tray in your oven are done pretty fast. Only filling the rings takes a little time.
And by the way: I really LOVE your recipes!

Loved this recipe. I have to admit I made a small change in that I pre-roasted the zucchini versus boiling as I love the flavor that it bestows/find that also helps with the moisture issue, but otherwise I kept everything the same. This is getting added to the regular rotation!

I will be trying this. I just tried two other zucchini recipes of yours from your “Everyday Ketogenic Kitchen” cookbook – Zucchini Spice Sheet Cake and the Spaghetti sauce over zucchini noodles. They were both excellent. I was not expecting the zucchini cake to be so good since I have NEVER found one single keto cake recipe that turned out edible. In fact I have my own flour version of this cake that my entire family loves so you were up against a high standard. Even my husband was more than happy with this wonderful dessert. Can’t wait to try more recipes and will probably have to break down and purchase your other two cookbooks. Thanks for all the hard work and testing that goes into your projects!

Good recipe to use up that bumper crop of zucchini. Hubby had seconds and he doesn’t care for zucchini. I used crushed cheddar crackers on top instead of pork rinds, but maybe next time I’ll just skip them. Overall good recipe.May try adding some spices too.

I’m just wondering if I did something wrong, but it tasted more like omlette eggs with zucchini, which is fine if that’s the intention. I did use milk mixed with butter instead of heavy cream, I’m wondering if that might be why.

I made this for our Sunday night dinner. My husband and I ate the whole thing. It was so good. I have to say my favorite is still the carmelized onion and gruyere cheese, however this was a close second. SO easy and delicious. Yum… so enjoying making a lot of your recipes. I am a THM and I plan my menu for the week. You are always my first stop to see what I can make!

This is an awesome casserole! My son even ate it, the only other way I get him to eat zucchini is layered with sliced tomatoes and mozzarella cheese and sprinkled with Italian seasoning and parmesan (also a great use of zucchini or squash)

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Looking for the best low carb recipes? You've come to the right place! I'm Carolyn, a major carnivore and an unrepentant sweet tooth. Here you will find all you need to enjoy the low carb keto lifestyle to the fullest! Read more